(3GdMGhj ddaJGhj aj Gdabg hYdhe GdJaSjQ hGdMOjK hGdCUhd hGdfMh hGdEYQGH hSGFQ Gdafhf (B/s - (3GdLdGd GdSjhWj, YHO GdQMef Hf CHj HcQ Hf eMeO,s 849-911 (3g`(B.s; (3YHO GdMejO, eMeO eMjj GdOjf,s 1318-1393 (3g`s ((3UjOG, dHfGf ;s (3HjQhJ (B:s (3GdecJHI GdYUQjI,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3Gdabg GdESdGejs; (3GdCMcGe GdTQYjIs